发明授权
- 专利标题： Styryl-diphenyl derivatives
- 专利标题（中）： 苯乙烯基 - 二苯基衍生物
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申请号： US382168申请日： 1973-07-24
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公开(公告)号： US3940437A公开(公告)日： 1976-02-24
- 发明人: Hugh Davidson , Keith Trevor Johnson , Brian Ernest Leggeter , Anthony John Moore
- 申请人： Hugh Davidson , Keith Trevor Johnson , Brian Ernest Leggeter , Anthony John Moore
- 申请人地址： EN Castleford
- 专利权人： Hickson & Welch Limited
- 当前专利权人： Hickson & Welch Limited
- 当前专利权人地址： EN Castleford
- 优先权： UK35033/72 19720726
- 主分类号： C09B57/00
- IPC分类号： C09B57/00 ; C07C1/32 ; C07C13/48 ; C07C15/42 ; C07C17/26 ; C07C35/22 ; C07C45/51 ; C07C45/75 ; C07C47/546 ; C07C47/55 ; C07C309/32 ; C07C311/02 ; C07D271/06 ; C07F9/40 ; C09B23/14 ; D06L3/12 ; D06P1/00 ; D21H21/28 ; C07C143/24
摘要：
Compounds of the general formula R-CH=CH-W-CH=CH-R.sup.1 are described in which R and R.sup.1 are independently phenyl, diphenyl, naphthyl, indyl, tetrahydronaphthyl or acenaphthenyl and W is divalent phenyl, diphenyl, naphthyl, tetrahydronaphthyl or acenaphthenyl group, which groups may be substituted, the compounds containing at least one non-aromatic ring. Such compounds are useful as optical whitening agents, for example in textile material or paper.
公开/授权文献
- US5509673A Armrest-driven wheelchair 公开/授权日：1996-04-23
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